Hi. I'm the tech guy here. Here's my builds: My first major build [2011]: 1.6kW 8T MAC motor on a Trek 4500 MTB. Super Hiryuu [2014]: Leafmotor 1500w @ 4/6kW on a Turner O2 full suspension MTB. Mini Hiryuu [2024]: Poor man's version of the Super Hiryuu w/cargo. Grin RH212 in a 24" wheel on a super cheap hardtail MTB. Blue Dream [2024]: Maxaraya FS semi recumbent and high efficiency mid-drive - under construction.